Mechanical Engineering MCQs

A. Mass does not cross boundaries of the system, though energy may do so
B. Mass crosses the boundary but not the energy
C. Neither mass nor energy crosses the boundaries of the system
D. Both energy and mass cross the boundaries of the system

A. 02, n2, steam, c02
B. Oz, n2, water vapour
C. S02, nh3, c02, mositure
D. 02, n2, h2, air

A. Pv=nrt
B. Pv=mrt
D. Pv = c
C. Pv=kirt

A. Temperature
B. Absolute
C. Absolute temperature, if volume is kept constant
D. Volume, if temperature is kept constant

A. Meter
B. Centimeter
C. Kilometer
D. Millimeter

A. Boyle’s law
B. Charles’law
C. Gay-lussac law
D. All of the above

A. Second
B. Minute
C. Hour
D. Day

A. Pressure
B. Temperature
C. Volume
D. All of the above

A. Elasticity
B. Endurance
C. Strength
D. Toughness

A. Brittle
B. Ductile
C. Elastic
D. Plastic